Draft-beam.



No. 819,335. 'PATENTED MAY 1, 1906'. W. H. BROWN.

DRAFT BEAM. AP PLIOATION FILED AUG. 14. 1905.

fig. 1,

WITNESSES: WZZINVENTOR.

UNITED STATES PATENT oFF oE.

WILLIAM H. BROWN, or TOLEDO, 01110 DRAFT-BEAM.

No.8l9,335.

Specification of Letters Patent. Application filed August 11905. Serialno. 274,165. g

Patented May 1, 1906.

'To all whom, it may concern: a

Be it known that I, WILLIAM H. BROWN, a citizen of the United States,and a resident of Toledo, in the county of Lucas and State of- Ohio,have invented certain new and useful Improvements in Draft-Beams; andIgdo hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which center pin of a truck and to so look together as to causean even distribution of 'a strain to both beams-of the draft-rigging,such arrangement being also madewith special pro-- vision foraccessibility and ready removal of the parts for the purpose of repair.

The construction, 0 eration, and arran ment of the parts of t einvention are fu ly described in the following specification and shownin the accompanying drawings, in

'broken away; and Fig. 4 is a cross-section of/;

Figure 1 is a top plan view of the draft-rigging comprising myinvention, togetherwith the associated head-block and upper-stransom,the latter being partially broken away. Fig. 2 is a bottom plan view ofthe same with portions of the lower transom broken away. Fig. 3 is aside elevation of the draft-rigging and the portion of a car to which itis secured, with a portion of one draft-beam shown as the draft-riggingand associated portion of a.-

car, taken on the dotted line as 00 in Fig. 3.

Referring to the drawings, 1 1 represenfit my improved draft-beams,preferab y cast from'malleable irpn or steel, which are of X111- plicateconstruction and each made in shiele' ton form, as shown Qb dotted linesin Fig, .1,

to cheapen and lig ten' the' construction thereof. The companiondraft-beama 1 are rigidly bound together in spaced relationbybinding-bolts2 which pass throughv (each of .the beams and the'spacingmembers 3, as

shown; and are rigidly secured to the two center sills 4 of .a carby'means pf the/bindingbolts, 5, said bolts passing througjh'a beamthrough the bearing-block for andsuperim osed sill, as shown. Aheadblock 6 of s itable construction, is bolted-1n transverse positionto the forward end ofthe beams 1 and has its rear face. abutting againstthe face Off the end sill 7, to which-it is also bolted. 1 I L Formedintegral with the innerfaces of the companion draft-beams 1 adjacent totheir rear ends. are the correspondingly positioned bosses orprojections 8, which have their contiguous faces flattened and abuttingto form abearing-block between the beams for the center pin of a truck.The abutting faces of the {portions 8 are each formed with a verticalsemicircular concav1ty wh1ch register to form the opening or bearing 9for the reception ofthe center pin and are formed on op posite sides ofsaid concavities with a vertical tongue a vertical. groove whichregister, respectively, with the groove and tongue of the other memberto form interlocking joints, as showh at 10. The purpose of interlockingner instead of having their abutting surfaces the halves-of thebearing-block in this manmade plain is to cause astress on the bearingablock or an unequal stress on the two draftbeams ,tobe equallydistributed to both of such beams, asone beam is revented from alongitudinal movement by t e other. While the two sections of thebearing-block are each shown as provided with a tongue and a groove,both tongues may be provided on, one section and, the grooves on theother, if desired.

The up er and lower surfaces of the portions of t e beams 1, from whichthe blocksetions8 project, are countersunk or grooved *a/sufiicientdepth and width to receive the utpper and lower transom members 11, thecuter surfaces of which are flush with the respective surfaces of thebeams, sas shown.

These transom members are united at their ends to the side sills 4 and:each is formed with an aperture alining with, the opening center pin.

Mounted between the forward ends of the draft-beams 1 is the usualdraw-bar 12, which has the yokearms 13 secured to its rear end for[receiving the follower-plates 14, which have their ends reciprocallymounted the pockets.15,- rovided in transversely-ahmn position in t einner sides of the beams 1 and are yieldingly spaced apart by the twinsprings 16, as shown.

i In addition to the binding-bolts 5 the draft-- rigging is furthersecured againsta longitudireceiving the beams.

I their abutting faces firterlocked and formed readily separated by theremoval of the renal movement with respect to the outer sills l byreason of the ribs or raised portions 17, formed on the upper surface ofeach beam 1, I fitting within transverse grooves provided in i the lowersurface of the center sills.

It will thus be seen that the construction of my draft-riggingmaterially cheapens' and simplifies its manufacture-by reason of thecenter-pinblock being caste-integral with the draft-beams, that theforming of said block l in two sections enables the two beams to be taining-bolts for the purpose of repairing or replacing one of the beams,and that the interlocking of the abutting faces of such blocksectionsstrengthens and causes the strain to be more equally distributed to thetwo draft- Having thus described my invention, what I claim as new, anddesire to secure byLetters Patent, is I j 1. In a draft-rigging, twocompanion draftbeams having integral abutting projections formed ontheir inner faces to constitute a center-pin block, said projectionshaving with arr opening for a center pin, and means for securing thebeams together.

secured together in spaced relation and hav- 5 ing abutting projectionsformed integral on their inner faces to constitute a center-pinbearing-block, said blocks having their abutting faces formed withvertically-disposed tongue-and-groove connection whereby to prevent anindependent longitudinal movement of either beam and also formed with anopening for a center pin.

3. In a draft-rigging, two cast-metalbeams secured together inrigidly-spaced relation and provided adjacent to their rear ends with aninterposed center-pin block, said block com rising two abuttingsections, one of whic- 'i is cast integral with each beam, andcountersunk portions provided in the upper and lower surfaces of eachbeam in transverse alinement with the center-pin block for the receptionof upper and lower transom meml bers.

In witness whereof I have hereunto signed my name to this specificationin the presence of two subscribing witnesses.

WILLIAM H. BROWN Witnesses:

(1W. OWEN,

MARY I. SHAY.

